>What was stopping people easily intergrating different languages before? I mean as long as you can compile it to object code its just a matter of linking them together. Or you can build dll's in just about any language and call them relatively easily.
There has to be something more to .net than that.<

Theres a lot more, Dean can fill you in on the details. the dll thing is relitvly close to what it does, look up some info on msdn